EP2541006A4 - Urea quality diagnosis system - Google Patents

Urea quality diagnosis system

Info

Publication number
EP2541006A4
EP2541006A4 EP11747385.0A EP11747385A EP2541006A4 EP 2541006 A4 EP2541006 A4 EP 2541006A4 EP 11747385 A EP11747385 A EP 11747385A EP 2541006 A4 EP2541006 A4 EP 2541006A4
Authority
EP
European Patent Office
Prior art keywords
diagnosis system
quality diagnosis
urea quality
urea
quality
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11747385.0A
Other languages
German (de)
French (fr)
Other versions
EP2541006A1 (en
Inventor
Hirotaka Takahashi
Takeshi Fukuoka
Tomoyuki Itou
Yasuo Okamoto
Tatsuo Mashiko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Isuzu Motors Ltd
Original Assignee
Isuzu Motors Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Isuzu Motors Ltd filed Critical Isuzu Motors Ltd
Publication of EP2541006A1 publication Critical patent/EP2541006A1/en
Publication of EP2541006A4 publication Critical patent/EP2541006A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2550/00—Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/05—Systems for adding substances into exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/18—Parameters used for exhaust control or diagnosing said parameters being related to the system for adding a substance into the exhaust
    • F01N2900/1806—Properties of reducing agent or dosing system
    • F01N2900/1812—Flow rate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2900/00—Details of electrical control or of the monitoring of the exhaust gas treating apparatus
    • F01N2900/06—Parameters used for exhaust control or diagnosing
    • F01N2900/18—Parameters used for exhaust control or diagnosing said parameters being related to the system for adding a substance into the exhaust
    • F01N2900/1806—Properties of reducing agent or dosing system
    • F01N2900/1818—Concentration of the reducing agent
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems
EP11747385.0A 2010-02-26 2011-02-23 Urea quality diagnosis system Withdrawn EP2541006A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010042742A JP5585125B2 (en) 2010-02-26 2010-02-26 Urea quality diagnostic system
PCT/JP2011/053981 WO2011105425A1 (en) 2010-02-26 2011-02-23 Urea quality diagnosis system

Publications (2)

Publication Number Publication Date
EP2541006A1 EP2541006A1 (en) 2013-01-02
EP2541006A4 true EP2541006A4 (en) 2015-02-25

Family

ID=44506828

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11747385.0A Withdrawn EP2541006A4 (en) 2010-02-26 2011-02-23 Urea quality diagnosis system

Country Status (5)

Country Link
US (1) US9188042B2 (en)
EP (1) EP2541006A4 (en)
JP (1) JP5585125B2 (en)
CN (1) CN102791976B (en)
WO (1) WO2011105425A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5789925B2 (en) * 2010-07-08 2015-10-07 いすゞ自動車株式会社 NOx sensor diagnostic device and SCR system
DE102012209240A1 (en) * 2012-05-31 2013-12-05 Robert Bosch Gmbh Method for checking the plausibility of a measuring device for determining a quality of a urea water solution in a container of an SCR catalyst system
DE112013002497T5 (en) * 2012-06-07 2015-01-29 Cummins, Inc. Method of causing maintenance of an SCR aftertreatment system
FR2997998B1 (en) 2012-11-14 2018-07-27 Inergy Automotive Systems Research (Societe Anonyme) METHOD AND SYSTEM FOR CONTROLLING THE OPERATION OF A SYSTEM FOR STORAGE AND ADDITIVE INJECTION IN EXHAUST GASES OF AN ENGINE.
KR101416408B1 (en) * 2012-12-31 2014-07-09 기아자동차 주식회사 Method and system of determining failure of urea quality sensor
US9708959B2 (en) 2013-07-11 2017-07-18 Ford Global Technologies, Llc Filtering method for intermittent ultrasonic level sensors
US9003778B2 (en) * 2013-09-09 2015-04-14 GM Global Technology Operations LLC Exhaust fluid dosing control system and method
KR102177356B1 (en) * 2014-09-30 2020-11-11 두산인프라코어 주식회사 Engine control apparatus and engine control method by urea quality
CN105804844A (en) * 2016-04-27 2016-07-27 合肥蓝海电子科技有限公司 Urea sensor integrated with function of urea quality detection
US11060429B2 (en) * 2019-07-29 2021-07-13 GM Global Technology Operations LLC Diesel exhaust fluid quality based dosing adjustment, alerts, and inducement
CN111058926B (en) * 2019-12-05 2021-02-23 潍柴动力股份有限公司 Urea concentration stability detection method and device and post-processor controller
CN112196649B (en) * 2020-09-03 2022-02-18 东风商用车有限公司 Urea concentration abnormity early warning system and method
CN112922700A (en) * 2021-01-25 2021-06-08 凯龙高科技股份有限公司 Device and method for detecting poor urea of SCR (Selective catalytic reduction) system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002371831A (en) * 2001-06-13 2002-12-26 Nissan Diesel Motor Co Ltd Exhaust emission control device of automobile
JP2006090334A (en) * 2005-12-21 2006-04-06 Nissan Diesel Motor Co Ltd Exhaust emission purifier of engine
US20070113625A1 (en) * 2005-11-11 2007-05-24 Ngk Spark Plug Co.,Ltd. Liquid state detecting apparatus
EP2072772A1 (en) * 2006-10-12 2009-06-24 Nissan Diesel Motor Co., Ltd. Engine exhaust cleaner
EP2136045A1 (en) * 2007-03-29 2009-12-23 Nissan Diesel Motor Co., Ltd. Device for distinguishing liquid reducing agent and exhaust emission purifier of engine
JP2010007568A (en) * 2008-06-27 2010-01-14 Bosch Corp Device and method for diagnosing rationality of sensor in tank

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6063350A (en) * 1997-04-02 2000-05-16 Clean Diesel Technologies, Inc. Reducing nox emissions from an engine by temperature-controlled urea injection for selective catalytic reduction
JP2000027627A (en) * 1998-07-13 2000-01-25 Hino Motors Ltd Reducing agent thermal insulating device for exhaust gas cleaning catalyst, and exhaust emission control device provided with this thermal insulating device
JP3751962B2 (en) * 2003-09-05 2006-03-08 日産ディーゼル工業株式会社 Engine exhaust purification system
JP3686672B1 (en) * 2004-12-24 2005-08-24 日産ディーゼル工業株式会社 Engine exhaust purification system
JP4782506B2 (en) * 2005-08-09 2011-09-28 日本特殊陶業株式会社 Capacitive sensor
JP4616184B2 (en) * 2006-01-31 2011-01-19 日本特殊陶業株式会社 Liquid state detection sensor
US8482298B2 (en) * 2006-12-18 2013-07-09 Schrader Electronics Ltd. Liquid level and composition sensing systems and methods using EMF wave propagation
US8307699B2 (en) * 2008-05-21 2012-11-13 Toyota Jidosha Kabushiki Kaisha Abnormality diagnosis apparatus and abnormality diagnosis method for NOx sensor
JP4557063B2 (en) * 2008-07-18 2010-10-06 株式会社デンソー Particulate filter regeneration device and driving method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002371831A (en) * 2001-06-13 2002-12-26 Nissan Diesel Motor Co Ltd Exhaust emission control device of automobile
US20070113625A1 (en) * 2005-11-11 2007-05-24 Ngk Spark Plug Co.,Ltd. Liquid state detecting apparatus
JP2006090334A (en) * 2005-12-21 2006-04-06 Nissan Diesel Motor Co Ltd Exhaust emission purifier of engine
EP2072772A1 (en) * 2006-10-12 2009-06-24 Nissan Diesel Motor Co., Ltd. Engine exhaust cleaner
EP2136045A1 (en) * 2007-03-29 2009-12-23 Nissan Diesel Motor Co., Ltd. Device for distinguishing liquid reducing agent and exhaust emission purifier of engine
JP2010007568A (en) * 2008-06-27 2010-01-14 Bosch Corp Device and method for diagnosing rationality of sensor in tank

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2011105425A1 *

Also Published As

Publication number Publication date
JP2011179360A (en) 2011-09-15
US20120304744A1 (en) 2012-12-06
US9188042B2 (en) 2015-11-17
WO2011105425A1 (en) 2011-09-01
CN102791976A (en) 2012-11-21
JP5585125B2 (en) 2014-09-10
EP2541006A1 (en) 2013-01-02
CN102791976B (en) 2017-03-22

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